Of all the things I wish for the interior of my model S, it's that tesla develop a nice looking auto-retractable sunshade for the all glass roof. It seems like the only possibility would be doing something equivalent to the S Class magic sunroof. It seems unlikely to be added as an option unfortunately since Tesla is trying so hard to simplify their cars, e.g. lack of ventilated seats, HUD, and active damping. As competition from other car manufacturers ramps up, where do you foresee Tesla beginning to re-introduce more complexity into their vehicles (other than autopilot)?